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一泓秋水
2025-01-02 13:58:55 +08:00
committed by GitHub
parent c47320d4de
commit 2c160d660a
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60
Workbench/Node/Junction/View/NextStepJunctionControl.cs
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using System.Windows;
using System.Windows.Media;
using System.Windows.Shapes;
using Serein.Library;
namespace Serein.Workbench.Node.View
{
public class NextStepJunctionControl : JunctionControlBase
{
//public override JunctionType JunctionType { get; } = JunctionType.NextStep;
public NextStepJunctionControl()
{
base.JunctionType = JunctionType.NextStep;
this.InvalidateVisual();
}
private Point _myCenterPoint;
public override Point MyCenterPoint { get => _myCenterPoint; }
public override void Render(DrawingContext drawingContext)
{
double width = ActualWidth;
double height = ActualHeight;
var background = GetBackgrounp();
// 输入连接器的背景
var connectorRect = new Rect(0, 0, width, height);
drawingContext.DrawRectangle(Brushes.Transparent, null, connectorRect);
// 定义圆形的大小和位置
double connectorSize = 10; // 连接器的大小
double circleCenterX = 8; // 圆心 X 坐标
double circleCenterY = height / 2; // 圆心 Y 坐标
_myCenterPoint = new Point(circleCenterX - connectorSize / 2, circleCenterY); // 中心坐标
var circlePoint = new Point(circleCenterX, circleCenterY);
// 绘制连接器的圆形部分
var ellipse = new EllipseGeometry(circlePoint, connectorSize / 2, connectorSize / 2);
drawingContext.DrawGeometry(background, MyUIFunc.CreateAndFreezePen(), ellipse);
// 绘制连接器的圆形部分
//var ellipse = new EllipseGeometry(circlePoint, connectorSize / 2, connectorSize / 2);
// 定义三角形的间距
double triangleOffsetX = 4; // 三角形与圆形的间距
double triangleCenterX = circleCenterX + connectorSize / 2 + triangleOffsetX; // 三角形中心 X 坐标
double triangleCenterY = circleCenterY; // 三角形中心 Y 坐标
// 绘制三角形
var pathGeometry = new StreamGeometry();
using (var context = pathGeometry.Open())
{
context.BeginFigure(new Point(triangleCenterX, triangleCenterY - 4.5), true, true);
context.LineTo(new Point(triangleCenterX + 5, triangleCenterY), true, false);
context.LineTo(new Point(triangleCenterX, triangleCenterY + 4.5), true, false);
context.LineTo(new Point(triangleCenterX, triangleCenterY - 4.5), true, false);
}
drawingContext.DrawGeometry(background, MyUIFunc.CreateAndFreezePen(), pathGeometry);
}
}
}